To help prevent computer performance problems, you need to periodically delete the Internet files and information.

How might the clocks in two computers that are linked by a local network be synchronized without reference to an external time source? What factors limit the accuracy of the procedure you have described? How could the clocks in a large number of computers connected by the Internet be synchronized? Discuss the accuracy of that procedure.

What will be an ideal response?

COGNITIVE ASSESSMENT Which of the following best describes the role of an SEO specialist?

A. Directs and implements an organization's use of Internet and social media marketing. B. Writes and develops web content and layouts so that they will appear at the beginning of search results. C. Integrates apps and data to provide an application that manages a company's relationships with customers. D. Plans and designs software and apps that consider a user's reaction to a program and its interface.